/Engine/Source/Runtime/SignalProcessing/Public/DSP/Encoders/IAudioEncoder.h
Call this function when audio is available. If you would like to handle compression on a separate thread or call, Call this function with bEncodeIfPossible set to false. Returns true if audio was successfully pushed, false, if the internal buffer is full.
bool PushAudio ( const float * InBuffer, int32 NumSamples, bool bEncodeIfPossible )